SpaceXAI prepares Grok Build desktop app to rival OpenAI Codex

xAI, recently rebranded as SpaceXAI, appears to be closing in on the launch of Grok Build, a desktop coding app whose existence briefly surfaced on Grok web today through a stray "Grok Computer" button. The control let users pick between a Grok computer folder and Google Drive, but the underlying feature did not work and was pulled shortly afterward. The accidental exposure suggests the rollout machinery is already in place, even if the public debut has not yet been officially scheduled.

Beyond the slip, @blankspeaker has gained early access to Grok Build itself. The app is being prepared for macOS, Linux, and Windows, putting it in direct competition with Claude Code from Anthropic and OpenAI's Codex desktop app. In layout and behavior, it sits closely alongside those rivals, leaning into agentic coding workflows rather than a chat-first model.

Under the hood, Grok Build supports plugins, MCPs, skills, and connectors, providing a broad surface for executing a wide range of developer tasks. It can also work with a Git tree, spawn a developer server, browse the web through a built-in browser, manage local files and folders, and run a planning mode for multi-step jobs. The combination places it in the same architectural neighborhood as Codex's desktop superapp and Claude Code's recent multi-session redesign, with xAI clearly aiming for feature parity from day one.

Whether the launch will be tied to a fresh model remains an open question. If Grok Build ships as is, the most capable model would be the recently introduced Grok 4.3 Early Access, which testers have credited with stronger frontend coding behavior.

The timing is still unconfirmed, but the brief leak at Grok Computer on the Grok web, combined with hands-on access spreading among insiders, points to a release not far off. SpaceXAI looks ready to make its full move into the agentic coding category at last.